Consider the following:
import os, commands
os.environ['QWE']="string with foo"
a = '$QWE ${QWE/foo/baz}'
b = commands.getoutput('echo ' + a)
This does what I want, which is to expand
a according to the standard bash expansion rules
(so b now references "string with foo string with baz"),
but it doesn't feel right.
Is there a more pythonic way to interpret strings according
to shell rules for word expansion? Relying on commands
feels like a kludge, and shlex is way too much work for this
(not to mention that it doesn't really address the issue).
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